Seat.



PATBNTED AUG. 1 1,- 1908.

H. S. HALE a J. B. KILBURN.

SEAT.

APPLICATION FILED SEPT. 19;190B.

2 SHEETS-SHEET 1.

WITNESSES: 5 1, a

ATTORNEY S No. 895,453. PATENTED AUG. 11, 1908.

' H. s. HALE & J. BVKILBURN.

SEAT.

APPLICATION FILED SEPT. 19, 1900.

2 SHEETS-SHEET 2.

S 7 \Nvmms 1 (/V: 2 BY WITNESSES:

ATTORNEY nmmr's. HALE AND JOHNB. KILBURN, or PHILADELPHIA, PEuNsYLvAuIA, AssIGNoRs 'roi'rns HALL- AND KILBURN MANUFACTURING coM-rANnoF PHILADELPHIA, PENN- v SYLVANIA, 3. CORPORATION OF PENNSYLVANIA.

a No. 896,453.

e To all whom it may concern:

Be it known that we, HENRY S. HALE .and JOHN B. KILBURN, both citizens", of the United States, and both residin 8.l'l PlLll8.-

dslphia, in the county of Phila elphia and State of Pennsylvania, have invented a certain new and useful Improvement in Seats, of which the following is a specification.

The object cf the present invention is to provide a chair or seat in which provision is made for the shift or adjustment of the back by the occupant, without rising from the seat.

A further object is to accomplish this in a i chair of the revoluble type now commonly employed in Pullman cars.

further object is to provide mechanism whereby the turning of the seat upon its su port shall depend upon the position of t e 'ack, the purpose here being to permit the chair to be placed in a car near the sidewall thereofbut at the same time guard against impact of the back with such wall in turning the seat to a new facing direction.

' Other objects will be made apparent during the following description 0 a preferred form of the invention.

Figure 1 is a side elevation of a seat of the Pullman type, equip ed with the invention; Fig. 2 is a section t ereof on the line 2-2 Fig. 3; Fig. 3 is a lan view of .certain metallic parts, the seat liack and cushion being re moved; Fig. 4 is an enlarged detail vlew, illustrating one of the severa positions of the parts whereby the inclination of the back is effected; and Fi-z." 5 is an enlarged detail view on the line 5-5Fi 3.

In that form 0% the invention which we have selected for the present disclosure, we employ a pedestal base A, adapted to receive the spmdle B carrying the supportin spider I: having outwardlyextending arms 3, b and I). Said spider-arms are here shown as supporting a rectangular seat-frame 0, comprising end members 0, 0, connected by the cross-members c, c. Said frame may, if desired, be of wood, in which event said four members may be properly joined,'or it may be of pressed steel, in which event it may be made mtegral. In either case, such frame is ri idly secured to the spider-arms by bolts or other suitable means. l

D, D, designate guide-plates, one at either side of the seat-frame and here shown as SEAT.

Specification of Letters Iatent. I v, Application filled September 19, 1906. Serial No. 385,821. 3 I

V j i mounted in the end members 0, 0' thereof although if desired they may be supported from tne spider-arms b, b. Each of said guide-plates is provided with two connected guide-grooves or guidewa 's d, 07,-here shown as bounded by-inwar y projecting ribs, although if desired said grooves may be stamped. in the metal, in which event such ribs may be dispensed with. As bestseen in Figs. 2 and 4, the guide-grooves d are a proximately, arc-shaped, while thegui' egrooves d are approximately straight, the

v i mes-pi s PATENT our-ion. f .T-

' Patented Au 11, 1908'.

same extending outward and rearward from the lowermost points of said guide-grooves d.

E, E, designate back supporting arms or brackets having angular upward extensions e upon which the seat-back E is detachably secured. Each of-saidbraolrets is provided at'its forward and rearward corners with studs or sheaves e, e, of such size as to snugly fit within the guide-ways d, d. In the present embodiment of the invention, saidstuds or sheaves e, e, hear such relaand shape of the guideways-d, d, that when the rearward studs or sheaves, e, coact with the ends of the guideways d, the forward studs or sheaves, e, W'lll coact withthe guideways d, the parts when in this position resulting in the normal (upright) osition of the back shown in Fig. 2. n or er to adjust the back to the rearward inclination shown in Fig. 1,-said studs or sheaves tion to each other with reference to-the size are caused, in the manner now to be de-.

scribed, to traverse said guideways d, :1, whereby such adjustment is effected without materially changin the relation 'between the lower edge 0 the seat-back and the adjacent surface of the seat-cushion E.

F designates a rock-shaft, here shown as mounted in bearings f, f, carried by the under side of the seat-frame C. Preferably one 4, end of said rock-shaft will project beyond said seat-frame and be rovided at its end with an o crating whee f or handle Said rock-s aft is provided with means adj acent to each end for efl'ecting the inclination of the back above referred to, and as the provision at one end for this purpose is the same as that at the other, we shall describe that at but one end onl G designates a collar keye or otherwise secured upon said shaft and a crank-arm g, pivoted to whic is a connectrovided with ing arm the opsite end whereof is secured by means pivot-ping to the inner face of one of the back-supporting arms or brackets E. As will be seen, the movement of the rock-shaft F, due to the operation of the wheel f or lever f, will, through the connecting arm 9, cause the back-supporting brackets E to move within the guidewavs 'd, d. .One extreme of the movement 19 is illustrated in Fig. 2, and the other in Fig. '4. Of course, the movement of the rockshaft may be arrested at any intermediate point, leaving the back in any desired position between these two extremes. In mov- 1 ing from the position shown in Fig. 2 to that shown in Fig. 4, the studs or sheaves e, e, are carried forward, the studs or sheaves e riding to theextreme ends of the guidewa s (1. By having such studs or sheaves snug y 2 fit said guidewavs, disagreeable lost mot on is prevented and the back is firmly and rigidly supported in either of its extreme pos1- tions, as well as in any intermediate position.

If the. ,seat'here shown and described were mounted close to the wall of a car, it might readily be revolved when the back occupies ;the normal (Fi 2) position. Should such back be in position, however, it would make contact with the side of the 39 car or with the window therein. Instead,

therefore, of sacrificing car space by mount- I the seats a sufiicient distance i'rom the si e of the car to permit such revolution, we provide means for precluding the revolution 3.5 of the seat save when the back is in the upri ht or substantially upright position here, reerred to as the norms position, i. e., that shown in Fig. 2. This provision is as fol lows:--The pedestal A is provided with two 4: stops it, it. With these stops coacts a awl H pivoted at 71 to the body of the spi or b. Said pawl has a projecting arm 71 whose forward end is pivoted to an ear 71 depending from the eccentric strap h coacting with the periphery of a cam h ke ed or otherwise secured u on the rcclesha t F.

The un er side of the pawl H is cut away at 71, as shown in Fi s. 3'and 5. The outer surface of the end oisaid pawl makes contact with the sto hwhen the seat is revolved upon the pivot b to suiiicient extent and in the direction indicated by the arrow i. On turning the seat in the op osite direction (indicated'by the arrow '5 however, and to sufficient extent, contact is made between the cut-away portion 71, that is the in ner side of the end of the pawl and the sto 7t. On reference to Figs. 1 and 2, it be seen that-when the back is in the normal (upright) position, the strap h, ear h and arm 72. are depressed and the pawl H is held in such a-position on its pivot that its end is above and out of the path of the stops h, 72/.

In this position of the parts therefore, the

5 seat may be revolved at in a complete 895,45 r w I .circle'. Wher'iil however, the crank-arzii 01 handlef or w eel f is'operated to move the back supporting brackets forwardly and thereby torearwardly incline 'the back" E,

this involving the rotaticn ofthe-shaft F and cam h, strap 12, ear h and arm 11, are'ele-, vated, thus correspondingly depressini; the a and of pawl H, and thereby moving the into the path of the stops h, 71.. When the pawl is in this position, the turning movement of the chair is limited by the enga ement of pawl-H with one or the other of are tter stops it, h and the chair can only tum through anarc of a magnitude determined by the position of the. two stops about the pivotal axis of the chair. These stops are so positioned. that they arrest rotation of the chair in either direction at such a point that the back will not engage the window or wall at the side of the can Hsvinv now described our invention what we claim as new therein and desire to secure by Letters Patent is as follows 1. In a seat, the combination of a pedestal, a frame mounted to rotate thereon, a plate secured to each of the sides of said frame and having a groove therein rovided with an integqsl lower wall exten mg throughout the of each of said arms and extending into the move in one of said plates, said studs bearmg on the lower walls of said grooves to support said back, links pivotally connected to said back-s11 cos-tang arms and means for operating sai nks to carry one of the studs on each of'said arms from one end to the other of the inclined portion ofthe groove into which it extends, substantially as set forth.

2. In a seat, the combination of a pedestal, a frame mounted to rotate thereon, a plate secured to each of the sides of said frame and having a groove therein rovided with an integral lower ext-en g throu hout the length of the .OOVB, one part of the groove being substantially horizontal and the other part inclined to the horizontal, a back, backsupporting arms secured. to the side edges thereof, two studs secured to the lower end of each of said arms and extending into the roove in one of said plates, said studs bearmg on the lower walls of said grooves to suppgrt said back, a shaft journaled in sa1d.

me, cranks on said shaft, links pivotally connected to said cranks and said back-sup porting arms and means for rotating said shaft to carry one of the studs on each of said arms from one end to the other of the inclined portion of the groove into which it exwan-manna... News...

ble frame, a back mounted thereon, meansfor moving the back to various ositions of is in one position of adjustmentawr precluding more than a predetermined an iint of rotational movement of the frame when the back is in another position of adjustment,

substantially as set forth.

4. In aseat, thecombination of a rotatable frame, an adjustable back, manually operated means for effecting the adjustment of said back, and mechanism operated thereby for permitting rotational movement of said frame through a predetermined range but precluding movement thereof beyond said range under certain conditions, substantially as set forth. I

5. In a seat, the combination of a rotatable frame, an adjustable back movable to forward and rearward inclinations, means for effecting adjustment of said back to such inclinations, and mechanism operated thereby for permittin rotational movement of said frame through a predetermined range but precluding movement thereof beyond said range when said back is at rearward adjustment, substantially as set forth.

6. In a seat, the combination with a sup port and a frame pivotally mounted therein, of an adjustable, non-reversible back, guideways carried by said frame, back-supports having studs or sheaves coacting wit 1 said guideways, a rock-shaft and means for manuall operating the same, a stop device intermediate of said frame and support, and interdependent connections between said rock- .shaft and said stop device and between said rock-shaft and back-supports, substantially as set forth.

7. In a seat, the combination of a support, a frame pivotally mounted thereon, a stop device between said frame and support in- 895,463" v r" i 'a eluding a pawl adapted to co-act with stops upon said sup ort to ermit rotation of said frame throug preclude such movement thereof ueyond a pre etermined range, but

said range, an adjustable back mounted on i said pivoted frame, a rock shaft,-and -means "carried thereby foradjusting said back and for throwing said pawl to operative and inoperative positions, substantially as set forth.

8. In a seat, the combination of a support provided with stops, aframe ivotally mounted on said support, a pawl a apted to co-act with said stops, an adjustable back, and mechanism for mterde enden't-l effecting the adjustment of said iiack and the operation of said pawl to permit rotational movement of said frame upon said support through a definite range but preclude such movement beyond said range, substantially as set forth.

9. In a seat, the combination of a pedestal,

a frame mounted for rotation thereon, a back pivoted on said frame a shaft extending across saidframe and journaled in bearings thereon, connections between said shaft and said back, means for rotating said shaft and thereby varying the inclination of the back, and means operated b the rotation of said shaft for permitting ee rotational movement of the frame u on the pedestal or for permitting rotationa movement of the frame upon the pedestal through a definite range but precluding such movement beyond said range, substantially as set forth.

This specification signed and witnessed this 10th day of February, 1906.

. HENRY S. HALE.

JOHN B. KILBURN. Witnesses to signature of Henry S. Hale:

Gno. H. RArsoN, I PETER. J. TUCKER. Witnesses to signature of John B. Kilburn:

GEO. H. RArsoN, JonN LITTLE. 

